What's the difference between a stamp, seal, and corporate seal?

A stamp is the broadest term. A registered seal (인감/印鑑) carries legal weight via official certificates. A corporate seal is registered with the court and is the official mark of a company.

Can I make a corporate seal too?

Yes. Choose 'Corporate' and 'Circle' to generate a layout with company name around the edge and Hanja text (e.g., 代表理事) in the center — the standard corporate seal format.

Is there any cost or signup required?

Completely free. No signup, no download limits.

Can I use it for commercial purposes?

Yes. Stamps you create with your own name or company can be freely used in business, contracts, and documents.

Are my stamps stored on a server?

No. All generation happens in your browser. No data is sent to Nadoo's servers.

Stamp Generator

Free Stamp Generator

Name: Free Stamp Generator — Korean, Japanese & English PNG Instantly
Availability: InStock
Author: Nadoo

Type a name or company and instantly generate a stamp image. Download as PNG and use anywhere.

All processing happens in your browser. Your files are never uploaded anywhere.

Make a stamp in 3 steps

Enter name or company

Type the text for your stamp — preview generates automatically.

Choose shape, font, color

Circle/square, font, border weight, and stamp effect — fully customizable.

Download PNG

Transparent-background PNG. Use on contracts, documents, or websites.

Multilingual authentic styles

Korean Hanja, Japanese,
and English — done right

Korean official seals (代表理事), Japanese corporate seals (代表取締役印), and English personal stamps — each with culturally authentic typography.

Corporate-seal level detail

Outer text + center marker
true corporate-seal layouts

Place company name around the circle, add star/diamond/dot markers, and embed Hanja in the center — exactly like a real registered corporate seal.

Frequently asked questions

The image itself is just a visual representation. Legal validity requires a digital signature; with Nadoo's e-contract product, your generated stamp can be combined with cryptographic signatures for legally binding contracts.

You made the stamp.
Now how do you put it on a contract?

With Nadoo's e-contract, sign legally binding contracts in 5 minutes using the stamp you just made. eIDAS-compliant. 15 languages.

Sign your first contract free Learn about e-contract

Feature	This free tool	Nadoo e-contract
Generate stamp PNG	✓	✓
Auto-place on PDF	—	✓ Drag & drop
Legal validity (digital sig)	—	✓ eIDAS compliant
Request counter-signatures	—	✓ Email automation
Audit trail & retention	—	✓ Permanent